[EN] PREPARATION OF LATANOPROSTENE BUNOD OF DESIRED, PRE-DEFINED QUALITY BY GRAVITY CHROMATOGRAPHY<br/>[FR] PRÉPARATION DE LATANOPROSTÈNE BUNOD DE QUALITÉ PRÉDÉFINIE, SOUHAITÉE, PAR CHROMATOGRAPHIE PAR GRAVITÉ
申请人:CHINOIN GYÓGYSZER ÉS VEGYÉSZETI TERMÉKEK GYÁRA ZRT
公开号:WO2017093771A1
公开(公告)日:2017-06-08
The subject of the invention is a process for the preparation of Latanoprostene bunod of formula (I) with a purity higher than 95% where chromatography is used applying normal phase gravity silicagel column chromatography where the used silicagel is irregular silicagel or spherical silicagel an as eluent and eluent mixture consisting of an apolar and a polar solvent is used and if desired, contamination of the purified compound of formula I arising from the solvents are removed by silicagel filtration chromatography.